Isoconcentrate
等浓度线
🗣️ 情景例句
The rich few nations of this world take up the vast majority of the wealth and resources.
少数几个富裕的国家占有了大多数的财富和资源。
Would you care for a cup of coffee?
你要不要来杯咖啡？
Give it to me, please.
给我。